Improved window-sash supporter



UNITED STATES PATENT OFFICE.

J. O. HARRIS, OF OTTAWA, ILLINOIS.

IMPaovi-:D wlNoow-sAsl-I SUPPORT-EP..

Specification forming part of Letters Patent No. A6,900, dated March 21,1865.

To aZZ whom it may concern,.-

Be it known that I, J. O. HARRIS, ofthe city of Ottawa, county of LaSalle, and State of Illinois, have invented a new and ImprovedVindow-Sash Supporter or Sash-Lock; and I do hereby declare that thefollowing is a full and exact description thereof,.reference being hadto the accompanying drawings and to the letters of reference markedthereon.

My invention consists in providing the double ratchet-wheel representedby Figures l and 4in the accompanying diagrams, ab c of said figuresrepresenting a wheel with beveled cogs, cl ef representing a smallerwheel attached to wheel a b c, which said last-ment'oned wheel hasrectangular cogs on its circumference, also, the tumbler g la z', asrepresented in Figs. 1, 5, and 6 in the accompanying drawings; also, thelever jk, as represented in Figs. l, 9, and l0, to which lever there isattached a pawl, l, as will be seen by f reference to the figures lastmentioned. Said lever is held in position by the spring m n, as seen inFig. l ofthe accompanying drawings, which said articles ofmaehinery,when placed together as intended by the said inventor, formdiagram or Fig. l of the accompanying drawings. Through the tumbler g hiis a keyhole, in which the key, as represented in Fig. 13 of the annexedor accompanying drawings, is intended to work. Said pieces of machinery,when puttogether, are inclosed ina frame or box, through the bottom ofwhich the ratchetwheel a b c'protrudes, the length of the cogs on itscircumference, as represented in diagram 2 of the accompanying drawings.This ratchet-wheel, protruding through said frame, as aforesaid, worksin the rack a' a of diagram 17 of the accompanyingdrawings as the windowis raised or lowered. The window-sash in which the rack is set is keptclosely and firmly to the side of the window-frame, in which the'sash-supporter or lock is placed by means of the elliptic spring on theopposite side of the sash. Said spring is represented in diagram 17 ofthe accompanying drawings by b b.

Iher smaller ratchet d ef is used in conjunction with the lever j l: andthe pawl l, as aforesaid, in fastening and holding the window at anygiven height desired, as follows By turning the key, inserted throughthe tumbler half around, one point or corner of the tumbler rests in theniche made in the lever at the point where a line drawn through thecenter of the tumbler would strike the lever, the line beingperpendicular to the lever. By this movement the lever is thrown up sothat the pawl Z is free of the cogs in the smaller ratchet-wheel d e f.When in this position, the window is raised or lowered, as desired. Byagain turning the tumbler half around the lever descends by means of thesaid spring, and the lever rests upon one of the faces of the tumbler,and the pawl rests in one of notches or between two of the rectangularcogs of the ratchetwheel d e j, by means of which the window is heldrmly in any given place or at any height desired, on account of the tworatchet-wheels being fastened together and the cogs of the largerratchet-wheel being crowded in the rack, as aforesaid, by the spring onthe opposite side of the sash, as before described.

Having now described the construction and operation of my improvedsash-lock, I will now specify what I claim as new therein and desire tosecure by Letters Patent- The combination and arrangement of the tworatchet-wheels, lever, pawl, and spring aforesaid, with the tumbler g hi, operated by aremovable key, substantially as and for the purposesshown and described.

J. O. HARRIS.

WVitnesses EDWIN R. FAY, F. A. SHEwooD.

